Siemens LU01 Manuel D’Utilisation

7ML19985BE02

SITRANS LU01 – INSTRUCTION MANUAL

Page 83

Use these parameters to verify programmng, when performing a dynamic material level 
test over at least 2 empty/fill cycles for each vessel is impractical. The parameters below 
will display the corresponding Reading in the Parameter Value field, will set the mA 
output value accordingly, and will set the relay status accordingly.

To take an ultrasonic measurement, access one of the following parameters, and press 

 (repeat five times to overcome Echo Lock, P711).

Alternatively, press ENTER 

 to simulate a rising and falling material level. During the 

simulation, the LU01 will operate as though the material level was repeatedly cycling from 
full to empty to full, and so on, at a rate of 1% of Span (P007) per second. See Lock (P000) 
to activate control relays during simulation.

The simulation starts at level = 0, unless a specific level was entered.

Press 

 to switch to the rising (or 

 for emptying) simulation as required. Holding the 

key increases (or decreases) the simulated rate of rise (or fall) to 4% of Span per second.

Press 

 to end simulation.

During a measurement or simulation, the LU01 responds as though in the RUN mode, but 
the value displayed in the Reading field is affected by the Measurement Paramter 
selected, and the material level is displayed in the Auxiliary Reading field.

Corresponds to the final reading after all programming is applied.

The distance in Units (P005) or % of Span (P007) between Empty (P006) and the 

monitored surface.

The distance between the monitored surface and Span (P007).

The distance between the monitored surface and the transducer face.

If measurements or simulation are desired, but the LU01 operation has not 

been verified, disable all associated process control equipment before accessing 
the following parameters.